Reagent dispensing means for chemical testing apparatus

ABSTRACT

AN IMPROVED REAGENT DISPENSING MEANS FOR USE WITH AN AUTOMATIC CHEMICAL TESTING APPARATUS HAVING A CYLINDER AND PISTON OF INERT MATERIAL WITH TWO ONE-WAY GLASS CHECK VALVES HAVING GROUND GLASS FLAT SEATING SURFACES PROVIDING ACCURATE CONTROL AND METERING OF REAGENT THERETHROUGH. THE OUTLET LINE OF THE REAGENT DISPENSING MEANS IS AT AN ANGLE TO THE AXIS OF THE RECEIVING TUBES IN THE CHEMICAL TESTING APPARATUS TO INTIMATELY MIX THE REAGENT WITH THE CONTENTS OF THE TUBES WITHOUT REQUIRING A STIRRER. THE REAGENT PISTON AND CYLINDER ASSEMBLY ARE LOOSELY CONNECTED TO A DRIVING MEANS WHEREBY ALIGNMENT OF THE PISTON AND THE CYLINDER IS UNAFFECTED BY THE DRIVING MEANS.

March 27, 1973 J. J. MORAN 3,723,066

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ATTORNEVJ J. J. MORAN March 27, 1973 REAGENT DISPENSING MEANS FORCHEMICAL TESTING APPARATUS Original Filed June 14, 1968 55 Sheets-Sheet5 llllll.

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Much 27, 1973 J. J. MORAN 3, 23,066

REAGENT DISPENSING MEANS FOR CHEMICAL TESTING APPARATUS Original, FiledJune 14, 1968 :55 Sheets-Sheet 7 ATTUHA/EVJ March 27, 1973 J. J. MORAN3,723,065

REAGENT DISPENSING MEANS FOR CHEMICAL TESTING APPARATUS Original FiledJune 14, 1968 35 Sheets-Sheet a J'ofin (f Mora/7 I N VENT 0R.

ATTOR/VEVJ March 27, 1973 J, MORAN 3,723,065

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Original Filed June 14, 1968 53 Sheets-Sheet 11 lln.

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REAGENT DISPENSING MEANS FOR CHEMICAL TESTING APPARATUS Original FiledJune 14, 1968 MAJTE/F TIMER 55 Sheets-Sheet 18 274 All? JYNC. (0N7:

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ATTORNEVJ J. J. MORAN March 27, 1973 REAGENT DISI'ENSING MEANS FORCHEMICAL TESTING APPARATUS Original. Filed June 14, 1968 3 Sheets-Sheet19 INVENTOR.

w BY Z ATIUR/YfVJ March 27, 1973 J. J. MORAN 3,723,066

REAGENT DISPENSING MEANS FOR CHEMICAL TESTING APPARATUS original FiledJune 14., 1968 $5 Sheets-Sheet 20 (/06/7 (I Mora/7 I N VENTOR.

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